diff options
Diffstat (limited to 'plugins/check_users.c')
| -rw-r--r-- | plugins/check_users.c | 45 |
1 files changed, 44 insertions, 1 deletions
diff --git a/plugins/check_users.c b/plugins/check_users.c index c581fb29..ff2aedd2 100644 --- a/plugins/check_users.c +++ b/plugins/check_users.c @@ -36,7 +36,12 @@ const char *email = "nagiosplug-devel@lists.sourceforge.net"; #include "common.h" #include "utils.h" -#include <utmpx.h> + +#if HAVE_UTMPX_H +# include <utmpx.h> +#else +# include "popen.h" +#endif #define possibly_set(a,b) ((a) == 0 ? (b) : 0) @@ -53,7 +58,11 @@ main (int argc, char **argv) int users = -1; int result = STATE_UNKNOWN; char *perf; +#if HAVE_UTMPX_H struct utmpx *putmpx; +#else + char input_buffer[MAX_INPUT_BUFFER]; +#endif setlocale (LC_ALL, ""); bindtextdomain (PACKAGE, LOCALEDIR); @@ -69,6 +78,7 @@ main (int argc, char **argv) users = 0; +#if HAVE_UTMPX_H /* get currently logged users from utmpx */ setutxent (); @@ -77,6 +87,39 @@ main (int argc, char **argv) users++; endutxent (); +#else + /* run the command */ + child_process = spopen (WHO_COMMAND); + if (child_process == NULL) { + printf (_("Could not open pipe: %s\n"), WHO_COMMAND); + return STATE_UNKNOWN; + } + + child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r"); + if (child_stderr == NULL) + printf (_("Could not open stderr for %s\n"), WHO_COMMAND); + + while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) { + /* increment 'users' on all lines except total user count */ + if (input_buffer[0] != '#') { + users++; + continue; + } + + /* get total logged in users */ + if (sscanf (input_buffer, _("# users=%d"), &users) == 1) + break; + } + + /* check STDERR */ + if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) + result = possibly_set (result, STATE_UNKNOWN); + (void) fclose (child_stderr); + + /* close the pipe */ + if (spclose (child_process)) + result = possibly_set (result, STATE_UNKNOWN); +#endif /* check the user count against warning and critical thresholds */ if (users > cusers) |